Radiative corrections to $K_{l3}$ decays

We present a complete calculation of the K_{l3} decays K^+ --> pi^0 l^+ nu_l and K^0 --> pi^- l^+ nu_l to O(p^4, (m_d-m_u) p^2, e^2 p^2) in chiral perturbation theory with virtual photons and leptons. We introduce the concept of generalized form factors and kinematical densities in the presenc...

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Detalles Bibliográficos
Autores principales: Cirigliano, V, Knecht, M, Neufeld, H, Rupertsberger, H W, Talavera, P
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/s100520100825
http://cds.cern.ch/record/522680
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author Cirigliano, V
Knecht, M
Neufeld, H
Rupertsberger, H W
Talavera, P
author_facet Cirigliano, V
Knecht, M
Neufeld, H
Rupertsberger, H W
Talavera, P
author_sort Cirigliano, V
collection CERN
description We present a complete calculation of the K_{l3} decays K^+ --> pi^0 l^+ nu_l and K^0 --> pi^- l^+ nu_l to O(p^4, (m_d-m_u) p^2, e^2 p^2) in chiral perturbation theory with virtual photons and leptons. We introduce the concept of generalized form factors and kinematical densities in the presence of electromagnetism, and propose a possible treatment of the real photon emission in K^+_{l3} decays. We illustrate our results by applying them to the extraction of the Kobayashi--Maskawa matrix element |V_{us}| from the experimental K^+_{e3} decay parameters.
id cern-522680
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
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spelling cern-5226802019-09-30T06:29:59Zdoi:10.1007/s100520100825http://cds.cern.ch/record/522680engCirigliano, VKnecht, MNeufeld, HRupertsberger, H WTalavera, PRadiative corrections to $K_{l3}$ decaysParticle Physics - PhenomenologyWe present a complete calculation of the K_{l3} decays K^+ --> pi^0 l^+ nu_l and K^0 --> pi^- l^+ nu_l to O(p^4, (m_d-m_u) p^2, e^2 p^2) in chiral perturbation theory with virtual photons and leptons. We introduce the concept of generalized form factors and kinematical densities in the presence of electromagnetism, and propose a possible treatment of the real photon emission in K^+_{l3} decays. We illustrate our results by applying them to the extraction of the Kobayashi--Maskawa matrix element |V_{us}| from the experimental K^+_{e3} decay parameters.hep-ph/0110153CPT-4248IFIC-2001-55UWTHPH-2001-44oai:cds.cern.ch:5226802001-10-11
spellingShingle Particle Physics - Phenomenology
Cirigliano, V
Knecht, M
Neufeld, H
Rupertsberger, H W
Talavera, P
Radiative corrections to $K_{l3}$ decays
title Radiative corrections to $K_{l3}$ decays
title_full Radiative corrections to $K_{l3}$ decays
title_fullStr Radiative corrections to $K_{l3}$ decays
title_full_unstemmed Radiative corrections to $K_{l3}$ decays
title_short Radiative corrections to $K_{l3}$ decays
title_sort radiative corrections to $k_{l3}$ decays
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/s100520100825
http://cds.cern.ch/record/522680
work_keys_str_mv AT ciriglianov radiativecorrectionstokl3decays
AT knechtm radiativecorrectionstokl3decays
AT neufeldh radiativecorrectionstokl3decays
AT rupertsbergerhw radiativecorrectionstokl3decays
AT talaverap radiativecorrectionstokl3decays

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